Kings Park is a large beautiful park full of native flora located in the middle of the city. The best views of Perth can be found here. Visit the modest but beautiful war memorial. (Bus 37 from St Georges Terrace. Also 39 on Sundays. Within Free Transit Zone)
Fremantle, about 20km south-west of Perth CBD is the original port and still supports a major maritime industry. Although part of the continuous built up area that is "Perth," it is considered by most locals to be a different city. Small enough to walk around comfortably with attractions that include the Maritime Museum. Popular with the locals as a place to go for a coffee and even more laid back than Perth. Renting a moped is a great way to see all of what Fremantle has to offer. (Train, or several bus options. 2 zone fare).
Hillarys Boat Harbour in Perth's northern suburbs is about thirty minutes from the centre of the city. Great food, drinks and beaches. A small water park, The Great Escape, will keep the kids entertained. The Aquarium of Western Australia (Aqwa) is located here as well. Aqwa features an underwater glass tunnel where you can get close up to sharks, stingrays and a huge variety of other marine species. There are also numerous souvenier shopping and eating opportunities. (Bus 456 meets all trains at Greenwood Station - Clarkson line during daylight hours on weekends during the warmer months. Contact Transperth for options at other times. 4 zone fare required.)
Perth Mint is the nation's oldest operating mint and one of the oldest mints in the world still producing coins from its original premises. You can buy and sell gold, purchase jewellry and souvenirs, see the mint in operation, and watch molten gold being poured to create gold bars. (Walk from City Centre along Hay Street east)
Perth Zoo has been open since 1898 and has an excellent reputation with both tourists and locals. The cost of entry can be found on the website, and free guided walking tours are offered at 11am and 1.30pm each day. Catch the ferry from Barrack Street jetty to Mends Street (South Perth) and walk to the zoo from there. There are lots of cafes in Mends Street. The ferry is operated by Transperth, and tickets are transferable between the ferry, buses and trains.
Burswood Casino: for those who like to flutter. The adjacent theatre is the home of many large shows and Burswood Dome the location for major tennis events and 'arena'-style pop shows. (Train Thornlie Line, or numerous buses. 1 zone fare)
Claisebrook Cove: A major urban redevelopment area on the Swan River at the fringe of the city centre. Spend a few hours wandering around the unusual modern architecture in bright colours or stop for a meal or coffee in one of the establishments in the area. Views of the city centre from the footbridge over the cove are particularly stunning at night. (Yellow Cat to Haig Park Circle stop, not nights, or train to Claisbrook - Midland, Armadale, Thorline lines, within Free Transit Zone)
Swan Bells, a unique bell tower at the foot of Barrack Street. The bells are from the church of St Martin-in-the-Field in London, and were a gift from the City of London to the people of Perth.